Hall effect in germanium

P r i n c i p l e:
The resistivity and Hall voltage of a rectangular germanium sample are measured as a function of temperature and magnetic field. The band spacing, the specific conductivity, the type of charge carrier and the mobility of the charge carriers are determined from the measurements.
T a s k s:
1. The Hall voltage is measured at room temperature and constant magnetic field as a function of the control current and plotted on a graph (measurement without compensation for defect voltage).
2. The voltage across the sample is measured at room temperature and constant control current as a function of the magnetic induction B.
3. The voltage across the sample is measured at constant control current as a function of the temperature. The band spacing of germanium is calculated from the measurements.
4. The Hall voltage UH is measured as a function of the magnetic induction B, at room temperature. The sign of the charge carriers and the Hall constant RH together with the Hall mobility mH and the carrier concentration p are calculated from the measurements.
5. The Hall voltage UH is measured as a function of temperature at constant magnetic induction B and the values are plotted on a graph.
W h a t y o u c a n l e a r n a b o u t:
* Semiconductor
* Band theory
* Forbidden zone
* Intrinsic conductivity
* Extrinsic conductivity
* Valence band
* Conduction band
* Lorentz force
* Magnetic resistance
* Mobility
* Conductivity
* Band spacing
* Hall coefficient

[@Polyphemooos]

Thank you for this video. I have to do a lab with this device about the Hall effect!

[@samiphy9208]

Thank you for the video. I just need to know, how can we activate cobra3 demo version?

[@phywesysteme]

You can download the software for free here: www.phywe.com/en/software-cobra4-multi-user-licence.html#tabs3
(setupm). With this software you can do analysis on your data. To acquire data,
you need an activation key, which is different depending on which experiment
your computer is connected. To access the features of data acquisition with
PHYWE’s Hall effect experiment, use the activation key 12345678-521-75748138.